Sudanese rebels have driven government forces from El Fasher, the last stronghold of the country’s regime in the western Darfur region, amid a brutal struggle for territory that has led to alleged genocide and contributed to one of the world’s most severe humanitarian crises.

The civil war has been raging in Sudan for two-and-a-half years now. It has been estimated that at least 150,000 people have been killed - including many civilians - and more than 14 million people have been forced from their homes.